package com.itheima.controller;

import com.itheima.domain.Book;
import com.itheima.service.BookService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;

@RestController
@RequestMapping("/books")
public class BookController {
    @Autowired
    private BookService bookService;

    @PostMapping
    public Result save(@RequestBody Book book ) {
        boolean flag= bookService.save(book);
        return new Result(flag?Code.SAVE_OK:Code.SAVE_ERR,flag);
    }

    @PutMapping
    public Result update( @RequestBody Book book ) {
        boolean flag= bookService.update(book);
        return new Result(flag?Code.UPDATE_OK:Code.UPDATE_ERR,flag);

    }

    @DeleteMapping("/{id}")
    public Result delete( @PathVariable Integer id ) {
        boolean flag= bookService.delete(id);
        return new Result(flag?Code.DELETE_OK:Code.DELETE_ERR,flag);
    }

    @GetMapping("/{id}")
    public Result getById( @PathVariable Integer id ) {
//        int i=1/0;
        Book book= bookService.getById(id);
        Integer code=book !=null?Code.GET_OK:Code.GET_ERR;
        String msg=book !=null?"":"数据查询失败，请重试";
        return new Result(code,book,msg);

    }

    @GetMapping
    public Result getAll() {
        List<Book> bookList= bookService.getAll();
        Integer code=bookList !=null?Code.GET_OK:Code.GET_ERR;
        String msg=bookList !=null?"":"数据查询失败，请重试";
        return new Result(code,bookList,msg);
    }
}